DHT Electronics 20''/50cm Male to Female RP-SMA Extension Cable Package include:1 x cable with RP-SMA connectorsone side is thread inside hole center,other side is thread outside pin center) Connector Material:Pure brass with Great connectivity.(Not Alloy) Cable type: Coaxial Quality Low Loss RG316 Impedance :50 ohm DHT Electronics Brand is a Registered Trademark of DHT LLC.Only authorized seller of DHT Electronics can sell under DHT Electronics listings.